<!DOCTYPE html>
<html lang="en">
<head>
    <title>登录页面</title>
    <meta charset="utf-8">
</head>
<body>
<h1>自定义登录页面</h1>
<form action="/login" method="post">
    用户名:<input type="text" name="username"><br>
    密码:<input type="password" name="password"><br>
    <input type="submit" value="登录">
</form>
<#if RequestParameters['error']??>
用户名称或者密码错误
</#if>
</body>
</html>